antidoron at the end of the service. Admittance to participate in the Eucharist is along a spectrum. Generally speaking, some churches celebrate closed Communion (only those belonging to the particular church or denomination), some close Communion (e.g., only those with whom the church has denominational ecclesiastical fellowship) and some open Communion (all professing Christians). Traditionally the Eucharist is not given to the unbaptized (Did. 9.5; Justin, 1 Apol. 65, 66; cf. Ap. Trad. 37), with
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